May 2010 - Pharo-users - lists.pharo.org

Help (perfect for newcomers) migrating a technical FAQ
by Mariano Martinez Peck April 9, 2011

April 9, 2011

Hi folks. I had a good idea and and it perfect for someone that wants to help and don't know how. It is not the most entertained task, but I promise you will learn a lot. Mostly, if you are newcomer. The idea is basically to migrate the FAQ that is here: http://scg.unibe.ch/wiki/faq/pharofaq to a new section in the collaborative Pharo book: http://book.pharo-project.org/ So....any takers ? Let us know so that we generate a new user in the Book The idea is also to check whether what is says is still correct for pharo or if it needs an update. Or even how to improve it (from the view of a newcomer). Thanks Mariano

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Error:invalid utf8 input detected.
by Guillermo Polito June 24, 2010

June 24, 2010

Hi there! We are using Pharo to teach OOP in UTN university, Argentina. Some times students have the error Invalid utf8 input detected when loading an image or doing a file out of a category. I think it happens mostly (or always, i'm not sure) in the OneClicImage, when running on windows. Is it a known issue? Thanks!

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What's the correct way to create anonymous subclasses in Pharo?
by Joachim Geidel June 21, 2010

June 21, 2010

Hi everybody, I am attempting to create subclasses of existing classes at runtime. They must not be in their superclass' list of subclasses, because they have to be garbage collected when they are no longer needed. This is what I tried to create such a class in Pharo 1.0: newMeta := (Metaclass new) superclass: Rectangle class methodDictionary: MethodDictionary new format: Rectangle class format; yourself. newClass := (newMeta new) superclass: Rectangle methodDictionary: MethodDictionary new format: Rectangle format; setName: #MyRectangle; yourself. newClass new class == newClass "--> false" The result of "newClass new" seems to be an instance of Rectangle, not of newClass. The test at the end of the code snippet answers false. When I compile a new method in newClass and install it in newClass' methodDictionary, an instance will not understand a message with the method's selector. Almost the same code will do what I want in VisualWorks: | newMeta newClass | newMeta := (Metaclass new) superclass: Rectangle class; methodDictionary: MethodDictionary new; setInstanceFormat: Rectangle class format; yourself. newClass := (newMeta new) superclass: Rectangle; methodDictionary: MethodDictionary new; setInstanceFormat: Rectangle format; setName: #MyRectangle; yourself. newClass new class == newClass "--> true" Does anybody have an idea what the problem is and what can be done to circumvent it? Thanks in advance! Joachim Geidel

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Debugging "Error: Could not access..."
by Geert Claes June 3, 2010

June 3, 2010

I am trying to use the debugger to find our why I get: "Error: Could not access http://www.squeaksource.com/Pharo" via an HTTP proxy server with authentication. I have successfully saved the network settings and from what I can tell the HTTPSocket has the correct HTTPProxyServer/Port and seems to have something in HTTPProxyCredentials so how do I find out why I get the Could not access? http://n4.nabble.com/file/n2228445/Proxy_Authentication_Settings.png http://n4.nabble.com/file/n2228445/Error_-_Could_Not_Access.png -- View this message in context: http://forum.world.st/Debugging-Error-Could-not-access-tp2228445p2228445.ht… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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little fix for Slice
by StÃ©phane Ducasse May 26, 2010

May 26, 2010

hi all Does any of you want to help? with a little exercise? It would be nice to help the user to provide coherent slice name I suggest SLICE-number-title title with only alphanumberical-characters any taker? because this would be cool to get another step forward http://code.google.com/p/pharo/issues/detail?id=2478 Stef

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[GSoC] Coding started yesterday!
by Mariano Martinez Peck May 25, 2010

May 25, 2010

Hi everybody. First, let me apologize for the multiple cross post. I think it is good to show the Smalltalk community periodically the status of GSoC. The good news in this case is that yesterday the students started to code! This was one of the GSoC deadlines that you can read in http://gsoc2010.esug.org/ and in http://socghop.appspot.com/document/show/gsoc_program/google/gsoc2010/faqs#… . Last two weeks or so, students have been talking and discussing with their mentors, reading and investigating about the projects. Some students already started to code before. But yesterday was the official day to start to code. For those that didn't know, we got not 5 but 6 projects. We asked more and they gave us one more ;) Once again, if you want to look at the 6 selected projects, see http://gsoc2010.esug.org/projects We already told students to ask in case of problems or questions to their mentors but also to the community (trough the mailing list). So, let's help them! Students: don't be shy. Ask! ;) Good luck to all students and enjoy this wonderful opportunity you have. Now we are in the best part of the program! Best regards, Mariano Martinez Peck GSoC admin gsoc-admin(a)esug.org http://gsoc2010.esug.org

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PhD thesis potentially in Smalltalk
by StÃ©phane Ducasse May 24, 2010

May 24, 2010

Hi guys This team has a Phd position which can be done in Smalltalk. Christophe Dony is an old smalltalk fan in the south of france. He supervised the PhD of Luc fabresse who is working with Noury (and working on Socket for Pharo right now). If you are interested please contact chouki directly. Stef Begin forwarded message: > From: Chouki TIBERMACINE <Chouki.Tibermacine(a)lirmm.fr> > Date: May 15, 2010 11:59:01 PM GMT+02:00 > To: StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> > Cc: Christophe Dony <dony(a)lirmm.fr>, Bouraqadi Noury <bouraqadi(a)gmail.com>, Fabresse Luc <fabresse(a)ensm-douai.fr> > Subject: Re: [Lmo-conference] ThÃ¨se en ingÃ©nierie des composants logiciels Ã Montpellier > > VoilÃ la version anglaise. > > Chouki. > > --- > TITLE: A Reflective Component-Oriented Programming Language > > SUPERVISORS: Chouki TIBERMACINE (tibermacin(a)lirmm.fr) and Christophe DONY (dony(a)lirmm.fr) > > FUNDING: French Government Fellowship (~1500 euros gross salary per month) > > PLACE: LIRMM, CNRS and Montpellier University (South of France) > > SUBJECT: > > Research on the modeling and implementation of applications by assembling components is growing up more and more. Component-based development allows the definition of independent software modules which are put in libraries, available on catalog, and assemblable as deployment and runtime units. > > In our research lab, we developed a voluntarily simple component-oriented programming language (SCL), which allowed an original and innovative integration of the concepts of component, port, interface, connector and aspect (see [1]). > > Component languages are used now in modeling environments in association with architecture description languages. We would like to study, on the basis of SCL, a reflective solution mixing a programming and an architecture description language, which allows: > - to link entities of conceptual reuse (component descriptors) with units of integration (component instances), > - via a reflective architecture and an API of meta-programming, allowing introspection and intercession, to describe with the same language architectures, constraints on these architectures (non-functional constraints as specified in [2]), and model transformations. > > Two SCL prototypes have been implemented in Smalltalk and Ruby. A prototype of the new language can be developed in JAVA or another language, and integrated with the Eclipse plugin of modeling component-based application (CLACS). > > [1] Luc Fabresse, Christophe Dony, and Marianne Huchard. > Foundations of a simple and unified component-oriented language. > Journal of Computer Languages, Systems and Structures, 34(2-3):130-149, Elsevier 2008. > > [2] Chouki Tibermacine, RÃ©gis Fleurquin, and Salah Sadou. > A family of languages for architecture constraint specification. > Journal of Systems and Software 83(5):815-831, Elsevier 2010. > --- > > Le 15/05/10 22:52, StÃ©phane Ducasse a Ã©crit : >> tu as une version en anglais? >> >> Stef >> >> On May 15, 2010, at 10:43 PM, Chouki TIBERMACINE wrote: >> >> >>> C'est ok pour l'orienter sur notre sujet. >>> Merci d'avance :-) . >>> >>> Chouki. >>> >>> Le 15/05/10 22:13, StÃ©phane Ducasse a Ã©crit : >>> >>>> chouki >>>> >>>> je peux le contacter en lui disant que notre bourse a ete supprimee et que votre sujet peut l'interesser. >>>> J'attends ton ok. >>>> >>>> Stef >>>> >>>> >>>> >>>>> Oui, bien sÃ»r, avec plaisir ;-) . >>>>> >>>>> Chouki. >>>>> >>>>> Le 15/05/10 21:51, StÃ©phane Ducasse a Ã©crit : >>>>> >>>>> >>>>>> chouki >>>>>> >>>>>> si vous etes vraiment pret a avoir un mec qui parait bon en langage et qui est interesse je peux vous mettre en contact >>>>>> avec un des etudiants tchec dont nous avons recu un cv pour une these langage (mais que pour des raisons de strategie inria nous >>>>>> avons du abandonnee). Nous l'aurions surement embauche si la these ne devait pas etre allouee sur un autre sujet. >>>>>> >>>>>> Stef >>>>>> >>>>>> On May 15, 2010, at 9:14 PM, Chouki TIBERMACINE wrote: >>>>>> >>>>>> >>>>>> >>>>>> >>>>>>> Merci StÃ©phane pour ces prÃ©cisions. >>>>>>> >>>>>>> En fait, on propose d'utiliser Java pour la future implÃ©mentation pour la simple raison qu'il est trÃ¨s difficile de nos jours de trouver un Ã©tudiant qui soit bon et qui voudrait bien travailler sur Smalltalk. >>>>>>> Si vous avez Ã Lille un bon Ã©tudiant Ã nous recommander, on est preneur. On le fera travailler sur Smalltalk (et Pharo) ;-) . >>>>>>> >>>>>>> On va regarder de prÃ¨s CLIC. Merci pour l'info :-) . >>>>>>> >>>>>>> Chouki. >>>>>>> >>>>>>> Le 15/05/10 17:04, StÃ©phane Ducasse a Ã©crit : >>>>>>> >>>>>>> >>>>>>> >>>>>>>> quel est la pertinence d'utiliser Java? >>>>>>>> conquerir le monde au travers d'eclipse? Bonne chance. :) >>>>>>>> >>>>>>>> peut etre que vous devriez contacter noury car il a un modele a composant >>>>>>>> CLIC >>>>>>>> >>>>>>>> Nous on s'amuse bien avec >>>>>>>> http://www.pharo-project.org >>>>>>>> >>>>>>>> et pas de societes aiment cela donc cela ne doit pas etre si mauvais que cela >>>>>>>> et c'est que le debut :) >>>>>>>> >>>>>>>> >>>>>>>> Stef >>>>>>>> >>>>>>>> PS: java c'est plus a la mode. maintenant c'est javascript :) >>>>>>>> et javascript va avoir les traits aussi ... >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> On May 15, 2010, at 2:12 PM, Chouki TIBERMACINE wrote: >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>> --- Merci de diffuser autour de vous >>>>>>>>> >>>>>>>>> THÃSE EN GÃNIE LOGICIEL / PROGRAMMATION >>>>>>>>> >>>>>>>>> TITRE : Langage rÃ©flexif de programmation par composants >>>>>>>>> >>>>>>>>> ENCADRANTS : Chouki TIBERMACINE (tibermacin(a)lirmm.fr) et Christophe DONY >>>>>>>>> (dony(a)lirmm.fr) >>>>>>>>> >>>>>>>>> BOURSE : Allocation de recherche MENRT >>>>>>>>> >>>>>>>>> LIEU : LIRMM, CNRS et UniversitÃ© de Montpellier >>>>>>>>> >>>>>>>>> RÃSUMÃ : >>>>>>>>> >>>>>>>>> Les recherches sur la modÃ©lisation et l'implÃ©mentation d'applications >>>>>>>>> par assemblages de composants sont maintenant passÃ©es Ã l'Ã©chelle. Le >>>>>>>>> dÃ©veloppement par composants vise Ã permettre la production de >>>>>>>>> composants indÃ©pendants stockÃ©s dans des bibliothÃ¨ques, consultables sur >>>>>>>>> catalogue et assemblables en unitÃ©s d'exÃ©cution et de dÃ©ploiement. >>>>>>>>> >>>>>>>>> Nous avons rÃ©alisÃ© au LIRMM un langage de programmation par composants >>>>>>>>> (SCL) volontairement simple, qui a permis une intÃ©gration originale et >>>>>>>>> novatrice des concepts de composant, de port, d'interface, de >>>>>>>>> connecteurs et d'aspects (voir [1]). >>>>>>>>> >>>>>>>>> Les langages Ã composants s'utilisent maintenant en intÃ©gration dans les >>>>>>>>> environnements de modÃ©lisation et en connexion avec un langage de >>>>>>>>> description d'architecture. Nous souhaitons Ã©tudier, sur les bases de >>>>>>>>> SCL, un langage mixte, de programmation et de modÃ©lisation >>>>>>>>> d'architectures, rÃ©flexif, qui permettra : >>>>>>>>> - de faire le lien entre les entitÃ©s de rÃ©utilisation conceptuelles que >>>>>>>>> sont les descripteurs de composants et les unitÃ©s d'intÃ©gration que sont >>>>>>>>> les instances de composants, >>>>>>>>> - via une architecture rÃ©flexive et une API de mÃ©ta-programmation >>>>>>>>> permettant l'introspection et l'intercession, d'Ã©crire, ou de dÃ©crire, >>>>>>>>> avec le mÃªme langage des architectures, des contraintes sur ces >>>>>>>>> architectures (contraintes non-fonctionnelles selon les modÃ¨les >>>>>>>>> dÃ©veloppÃ©s par C. Tibermacine dans [2]), ainsi que des transformations >>>>>>>>> de modÃ¨les. >>>>>>>>> >>>>>>>>> Deux prototypes de SCL ont Ã©tÃ© implÃ©mentÃ©s en Smalltalk et en Ruby. Un >>>>>>>>> prototype de ce nouveau langage pourra Ãªtre dÃ©veloppÃ© en JAVA ou autre >>>>>>>>> et intÃ©grÃ© au plugin Eclipse de modÃ©lisation d'applications par >>>>>>>>> composants, CLACS. >>>>>>>>> >>>>>>>>> [1] Luc Fabresse, Christophe Dony, and Marianne Huchard. >>>>>>>>> Foundations of a simple and unified component-oriented language. >>>>>>>>> Journal of Computer Languages, Systems and Structures, 34(2-3):130-149, >>>>>>>>> Elsevier 2008. >>>>>>>>> >>>>>>>>> [2] Chouki Tibermacine, RÃ©gis Fleurquin, and Salah Sadou. >>>>>>>>> A family of languages for architecture constraint specification. >>>>>>>>> Journal of Systems and Software 83(5):815-831, Elsevier 2010. >>>>>>>>> >>>>>>>>> Bien cordialement, >>>>>>>>> >>>>>>>>> Christophe Dony& Chouki Tibermacine. >>>>>>>>> >>>>>>>>> -- >>>>>>>>> Chouki TIBERMACINE, PhD >>>>>>>>> Associate Professor in Computer Science >>>>>>>>> LIRMM - CNRS and University of Montpellier II - France >>>>>>>>> Office Phone: +33(or 0).467.149.724 >>>>>>>>> Lab Fax: +33(or 0).467.418.500 >>>>>>>>> Web Page: http://www.lirmm.fr/~tibermacin/ >>>>>>>>> >>>>>>>>> _______________________________________________ >>>>>>>>> Lmo-conference mailing list >>>>>>>>> Lmo-conference(a)email.polytech.unice.fr >>>>>>>>> http://email.polytech.unice.fr/mailman/listinfo/lmo-conference >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>> -- >>>>>>> Chouki TIBERMACINE, PhD >>>>>>> Associate Professor in Computer Science >>>>>>> LIRMM - CNRS and University of Montpellier II - France >>>>>>> Office Phone: +33(or 0).467.149.724 >>>>>>> Lab Fax: +33(or 0).467.418.500 >>>>>>> Web Page: http://www.lirmm.fr/~tibermacin/ >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>> -- >>>>> Chouki TIBERMACINE, PhD >>>>> Associate Professor in Computer Science >>>>> LIRMM - CNRS and University of Montpellier II - France >>>>> Office Phone: +33(or 0).467.149.724 >>>>> Lab Fax: +33(or 0).467.418.500 >>>>> Web Page: http://www.lirmm.fr/~tibermacin/ >>>>> >>>>> >>>>> >>> >>> -- >>> Chouki TIBERMACINE, PhD >>> Associate Professor in Computer Science >>> LIRMM - CNRS and University of Montpellier II - France >>> Office Phone: +33(or 0).467.149.724 >>> Lab Fax: +33(or 0).467.418.500 >>> Web Page: http://www.lirmm.fr/~tibermacin/ >>> >>> > > > -- > Chouki TIBERMACINE, PhD > Associate Professor in Computer Science > LIRMM - CNRS and University of Montpellier II - France > Office Phone: +33(or 0).467.149.724 > Lab Fax: +33(or 0).467.418.500 > Web Page: http://www.lirmm.fr/~tibermacin/ >

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[BetaTesting] [ANN] Pharo-1.1-11367-Beta1dev10.05.1
by Mariano Martinez Peck May 21, 2010

May 21, 2010

Hi Pharaoers. I am pleased to announce the first Pharo 1.1 beta based on PharoCore-1.1-11367-Beta. It is the first time we build a Pharo 1.1 dev image with PharoCore 1.1 so the image may be not 100% stable. However, we think it is good to release it so that people can start to test it, load their own packages, adapt them, etc. We would like to receive feedback about it. It (yet) has failing and error tests. The main changes with Pharo 1.0 is that of course, it is based on a PharoCore 1.1 with all that it means. We started to write down some of the actions done in PharoCore 1.1. The list so far can be found here: http://code.google.com/p/pharo/wiki/ActionsInPharoOneDotOne Of course, for the stable releae of Pharo 1.1 we will do a clear list in the website as we did for 1.0. Regarding the included packages in 1.1 we added ScriptManager (a tool to manage and persist workspaces), ProfStefBrowser, ArchiveViewer, MethodWrappers and ObjectMetaTools (which includes things like ProtocolCatcher, ObjectTracer, ObjectViewer, etc). Another difference is the font. In Pharo 1.0 we used TrueType fonts by default. In Pharo 1.1 we use StrikeFonts (no need of TrueType plugin, netiher to have the fonts). However, of course, you can disable StrikeFonts and put TrueType like in 1.0. That's all. We would really appreciate you use it, test it, report issues, provide fixes, etc. It is important also that you start to use your own packages/applications. There have been several changes in 1.1 that may require change in your code. Ahh if you want to create the image yourself, check as usually the installScript.st file to see how to do it. Actually, you can just take a PharoCore-1.1-11367-Beta image and evaluate (the same procedure as 1.0): Gofer new squeaksource: 'MetacelloRepository'; package: 'ConfigurationOfPharo'; load. ((Smalltalk at: #ConfigurationOfPharo) project version: '1.1-beta1.10517') load. Here is the link to the image: https://gforge.inria.fr/frs/download.php/27025/Pharo-1.1-11367-Betadev10.05… Cheers Mariano

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[Job] Smalltalk Web Application Developer
by Adrian Lienhard May 21, 2010

May 21, 2010

(apologies for multiple receptions of this message) Hi all, netstyle.ch is looking for a Seaside web application developer. We are a small, agile team located in Bern (Switzerland). With Cmsbox we have developed an award winning Content Management System. The successful candidate will have excellent skills in OO software development with a dynamic programming language. Fluency in German is not a must, but we expect applicants to acquire basic understanding of German. A detailed job description can be found on our website (in German): http://www.netstyle.ch/firma/jobs For questions and applications please contact me at info(a)netstyle.ch Cheers, Adrian ___________________ http://www.adrian-lienhard.ch/

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Accentuate Characters
by Adrien BARREAU May 20, 2010

May 20, 2010

Hello, I want to compose accentuate character in Pharo, but I don't know how I can do that. I saw in Visual Works I can write this kind of things : $e composeDiacritical: (Character diacriticalNamed: #acute). That returns $Ã©. But, I don't find a way to do that in Pharo. Does somebody have an idea ? :) A.B. _________________________________________________________________ Vous voulez regarder la TV directement depuis votre PC ? C'est trÃ¨s simple avec Windows 7 http://clk.atdmt.com/FRM/go/229960614/direct/01/

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